Window-opening device



WINDOW OPENING DEVICE.

FILE-D FEB. 11, 1920- 3 SHEETS-SHEET 1- Fig.1.

Wifizes 5 es Jan. 30,1923. 1,443,691.

- A. KURTH.

WINDOW OPENING DEVICE.

.HLED FEB-11,1920. 3 SHEETS S HEET 3.

Fig.7. Fig.8;

I 0 gas E 27 it; 43

fizaazziar A red 222955,

75th of July,

Arrann Kimmie, or BERLIN, Gn'a vmnr.

w mnow-ornnine Device,

Application filed February 11, 1920; Serial No, 358,010.

GRANTED manna an; rnovxsroirsor new on n;AJ ncn .-3-,1s2i,j,;isum.M1313.

T0- cZZ who-mat may concern;

Be it known that I, "*sLFREn KiiRrH, re-

siding at 43 Kaiserallee, lvilmersdorf, Berlin, Germany, have inventedcertain new and useful Improvements in Window-Opening Devices, (forwhich 1 have filed applications in Germany on the 25th October, 1913,and 1916; Austria and Hungary on the 9th of September, 2lst-ofSeptember, 1914:; and Franceon the 22nd of October, 1914:, French PatentNo. 502,315, delivered February 19, 1920,) and of which the following isa specification. This invention relates in general to devices foropening windows by means, of a lever manipulated by the hand, and-moreparticularly to such devices in railway car.- riages. v I

In a known form of device for opening carriage windows a handle or leveris provided beneath thewindow frame, which, on being pulled or pressedback, pushes a pressure -framei. e; a frame that is pressed against thewindow by a spring, and thus keeps the windowin position away from thewindow frame so as to release it. The window can now be moved -as longas the said handle and the pressure'frame affected by it remain in theosition into which they have been moved. n the handle being returned toits initial position the pressure frame is again pressed by its springagainst the window and this is then retained in the particular positionit occupies atthat moment. 7

These devices have a disadvantage which causes great inconvenience. Tobe able to move the window vit is necessary to hold the handle with onehand, so that the other hand only can be used for moving the window.This is. particularly disadvantageous in the cases of windows, which,like those usually provided in railway carriages, have their weightsbalanced in such a manner that, on the pressure frame being pulled awayfrom a fully closed window, this latter immediately drops about 8 to 12inches, whence, if it to be opened further, it is pushed down directlyby hand. When closing windows of this type the strength requiredinpushing them up'throughthe said topS to 12 inches is-by no meanssmall,and it will often happen that the one arm, especiallyof a lady or child,will not be 1914; Italy on the r ng eneug o the p zpese Th se ond a m Weyrse -m a ail b ca se the Y handle has to :be held in its moved,ositio'n f the w ndow is to vbe at all mova; le.)

To remove this drawback; eontrivanees have been proposed by which thehandle, after it has been movedgfor' the purpose of pulling back thepressure frame from the window, is retained in its moved position sothat i ay be l t go w ho tithep t ssure frame again pressing againstthe'windew and both ha-nds'may be used for shifting the window, But thegain achieved by this is ,not very; lgreatbecause it is still necessaryto hold the raised windowflngits high- ,est position with one handwhilst restoring the handle to its normallposition.

An, .obj ect ,of the nvention s to remove dizawbackpand is accomplishedvby providing means by which the handle isautomatically restored to itsnormal positionfthemomentthe window reaches its uppermostpos tion.

"lg-nether feature of the above described devices ,for opening windowsconsists in means jforlifting the whidow off the rain or splash boardwhen the pressure lframe is pulled or pushed back by .pres sureor pullexerted on the said handle. For this purpose seizing members or. hooks,attached to the pressure frame and each having a bent portion passesround to the back of the ,windowsash so as tolooselyembracelit, areprovidedwhlchseize this, frame and disenge fron the splash board whenthe pres sure framewis pushed .back by the said handle. Thefspring whichpressesthe'pressure frame against the window and the handle may both bevarranged]at about the same height and on the ,middle vertical lineoi'the window and in such a manner that when the pressure frameis forcedaway-from the window by the said handle the spring'is suitable for verywide windows because, on

account of the force which moves the the .Wlllpressure frame, are usedin the c ase of ,Wide

windows for urging the pressure frame pressedutogether. This arrangementunagainst the window and .keepiriglit in a aparallel position when it isworked by the said handle. But a disadvantage resulting from thisarrangement is that the force ap plied through the handle to the middleof the frame, in the opposite direction to the force of the two springs,bends the frame to such an extent that the two hooks at the sides of theframe cannot shift the window back far enough to separate it from thesplash board. Another disadvantage of this known arrangement is that thepressure frame cannot be removed unless the window is first lifted outbecause the frame is connected to the window by the said hooks.

To remove these evils is another of the objects of this invention andthis is'accomplished by arranging the'hooks, that are intended to shiftthe window 05 the splash board when the pressure frame is pulled back,to move in slotted guides attached to the frame instead of fixing themimmovably to the frame. The hooks are adapted to move in the slots ofthe said guides in the same direction as the pressure frame and are madesubject to the action of springs that tend to press them against thewindow and shift it off the splash board when the pressure frame ispulled back.

Hitherto the pressure frame for the window with which the lock or thewindow opening device cooperates has usually been made and fitted intothe carriage door by the carriage builders and it was frequently foundon putting in the window opening device that the pressure frame did notproperly conform to the parts of the device and had to be adapted to it.Another object of the invention is to remove this drawback and this isaccomplished by mounting the pressure frame and the window openingdevice or lock upon a common plate. This plate with'all of the saidparts then forms a complete apparatus and is mounted on and serves tostrengthen the board which forms the inner side of the window shaft orwell into which the window sinks when let down. Since the window openingdevice and the pressure frame are mounted on a common plate the troublewhich was frequently caused by the distance between the frame and thesaid device being incorrect cannot arise.

The invention is illustrated in the drawings in which Fig. 1 is avertical section through a window opening device in a closed window, i.e., a window that is pulled into its uppermost position.

Fig. 2 is a vertical section shewing the window in a position in whichit can be moved up or down at will without working the handle, and

Fig. 3 is a section through Fig. l on the line i k-13.

Fig. 4 is a vertical section through a wide window provided with booksthat slide in guide members attached to the sides of the pressure frame,instead of fixed hooks as in the case of Figs. 1 and 2, which representa design that is suitable for narrow windows- F 5 is a section throughFig. 4 on the line ab, and

Fig.6 is a section through Fig. 4 on the line c d. I

Fig. '7 is a vertical section through the part of a window equipped witha lock or window opening device with which the pressure frame iscombined and in which special window seizing means for moving the windowaway from the splash-board are afforded.

Fig. 8 is a similar section to Fig. 7 and shews the window lowered fromthe splashboard.

Fig. 9 is a view of the window opening device and the pressure framemounted on a common plate as seen from the back of the plate or from theright in Fig. 8.

Mounted in the wall of the carriage or in the door frame 1 is a handle 2which, when it is moved in the direction of the arrow, shifts thepressure frame 3 away from the sash 5 of the window pane 6 in oppositionto a spring 4:. The pressure frame3is connected to the window sash byhooks or seizing members 7 which loosely embrace the window sash 5.Hence the shifting away of the pressure frame 3 from the window causesthe window sash to be pulled ofi the splashboard 8 so as to enable thesash to be moved vertically. The handle 2 which turns on a pivot 9 isconnected by a link 10 to the pressure lever 11. This lever rocks on apivot 12, whilst the link 10 is joined at one end by a pivot 13 to thehandle 2 and at the other end by a pivot 14 to the said pressure lever11. On the handle 2 being moved downwards as indicated by the arrow inFig. l the pivot 13 is moved upwards on a circle around the pivot 9 andthe link 10 is moved forward (towards the window). Hence the pressurelever 11 is rocked in such a manner that its nose 15, which bears agaista down wardly projecting rib 16 of the pressure frame, pushes thepressure frame 3 away from the window whilst pressing together thespring 4-. The result of these functions is that the handle and the linkstretch out and the three pivots 9, 13 and 14 are brought into line orinto a line which curves slightly upwards (see Fig. 2). The handle 2 ishereby locked in its lower position so as to prevent its being moved bythe pressure of the spring 4, and the window sash is then releasedandfree to be moved. On its now being raised to its uppermost position itis not immediately and automatically set onto thesplash-board becausethe pressure frame is kept out of contact with it. The setting ing thehand against the inside of the windOlYeWllGIl the possibility wouldremain of the window being shaken off the splash board by vibration andfalling down again on account of its not being secured in place by theaction of the pressure frame-or it would be necessary, after pushing upthe window, to remove one'hand from the window so as to be able to useit for moving the handle out of the locked position.

According to the invention the following arrangement is provided forremoving'this drawback: Loosely mounted on the pivot 12 is a cam19'which lies in the path of a dependent hook'or curved piece 18, on thewindow sash. The cam 19 is provided with a sliding surface, whichengages with a surface 20 on the inner end of the handle 2 when thishandle is moved into its locked position (see Fig. 2). The arrangementof the cam- 19 and the hook 18 is such that the hook slightly lifts thecam at the nose end 17 of the cam when. the window in being closedreaches its highest position. The sliding surface of the cam will thenbe pressed against the surface 20 at the rear end of the handle 2. Thiswill force the pivot points 9, 13 and 14 from the position shown in Fig.2 and, the pressure spring 4 bearing against the pressure frame 3, thehandle 2 .is turned back into its initial'position (Fig. 1). e

The hooks or window seizing members 7 shown in Figs. 1 and 2 are, asstated-in preceding paragraphs, not eminently suitable for shifting thesashes of wide windows away from their splash boards. A preferred formof these members or hooks is illustrated in Figs. 4 to 6 according towhich they are not-rigidly fixed to the pressure frame 3 but arearranged to slide in guide members'21 and 22 attached to the pressureframe. Fixed to each hook 7 is a spring 23 which abuts against the wallinto which the window sash is fitted and tends to press the hook 7against the window sash. But the hook is prevented from contacting withthe window sash while at rest by means of an extension 24 which bears ata against an overlapping portion 25 of the pressure frame, see'fF 1g. 5.

'Onthe pressureframe 3'being moved away from the window by moving thelever 15 through pressure exerted onthe handle 2 the two hooks situatedat both sides of the window are caused by their springs 23: toparticipatein this movement and-in so doing they strike against the sashof the window 6 and shift the window off the splash-board. But the'hooksonly bear against the window frame until the extensions 24 of the hooks7 againstrike against the overlapping portions ofthe pressure-frame ata, which will acts as a pressure frame.

happen when the pressure frame comes rest. The springs will then nolonger be able to press the hooks forward so that it will be possible"to move the window withperfect freedom.

In the modification shown in Figs. 7 to 9 the arrangement is suchpthatthe window opening device can "be fitted into the wall or window mucheasier than the old types or than those hereinbefore described. This isaccomplished by arranging the pressure frame not so as to'rock on pivotsor hinges at the top of the window frame in the usual manner but on ametal plate on which all the parts of the window opening device such asthe handle 2, lever 11' etc. are also mounted. The entire contrivanceincluding the pressure frame can then be supplied to the carriagebuilders complete and ready to be fixed by them in the vwall of acarriage.

Stamped up out of a metal plate 26 (Figs. 7 to 9) so as to projectupwardly from the same are ears 2? and arms 29 swing upon pivots 28heldin these ears. The arms'29 are connected to each other by a crossbar 3 which replaces the lower horizontal board of the pressure frame 3of Figs. '1 to 3 and As l11-FlgS.- 1 to 3 this frame has a downwardlyprojectin' rib 16 against which the lever 11' is pressed. This lever11', the handle 2, and its cooper-- ating parts are mounted in a casing30 which, like the arms129, is fixed to two ears 31 whichare stamped upout of the plate 26.

The means for shifting the window off the splash-board when the pressureframe is moved back consists in this case merely of a. spring 32 whichexerts constant pressure against the border 5 of the window, sashinstead of the hooks 7 or 7' previously described;

It will'be evident thatmany changes and modifications of'the describeddetails may be madewithout departing from the spirit of the inventiomorexceeding the scopeof the appended claims.

Iclaim: 7 1. The combination of a window sash arranged for opening andclosing b-y'sliding movement, a movable pressure member engageable withsaid sash and bearing against the sash when the same isclosed; means forV imparting movement to the pressure memher; a movable operatinghandle;and means cooperating, with the first mentioned. means and with saidoperating handle for moving said pressure member away from said sash 3to permit sliding movement of thesash, and

for locking the operating handle in the posi 'tion to which it is moved.

2. The combination, of window sash arranged for opening and closingbysliding movement; a movable pressure member en gageab-lewithsaid sashand bearing against the sash when thesame isclosed; amovable handle:means imparting to the pressure member, means cooperating with the firstmentioned means and with said operating handle a to r 10;? moving saidpressure member away from said sash to permit sliding movement of thesash and for locking the operating handle in the position to which ismoved; and means cooperating with said sash with said operating handlefor unlocking the handle when the sash moved to closing position.

The combination, of a window ar ranged for open ng and closing bysliding moven'xent; tin vable pressure menber engageahle with said sashand bearing the sash when the same is closed; means for impartingmovement to the pressure member; movable operating handle; meanscooperating 1 h the first mentioned means and with said operating handlefor moving pressure member away from said sash to permit slidingmovement of the sash and tor locking the operating handle in theposition to which it is moved; and means cooperating with said sash andwith said operating handle for unlocking the operating handle and topermit the to be returned to its initial position when the sash is movedto closing position.

a. The combination, with a window frame having a splash board, ot awindow sash in said window frame arranged for opening and closing bysliding movement and en gaging said splash board when closed; a movablepressure member engageable with said sash and bearing the sash to retainthe same on said splash board when the sash is closed; means forimparting movement to the pressure member; means for shifting the sashoff said splash board when the pressure member moved away from saidsash; a movable operating handle; and means cooperating with the firstmentioned means and with said operating handle for moving said pressuremember away from said sash to permit sliding movement of the sash andfor locking the operating handle in the position to which it is moved.-

5. The combination with a window frame having a splash board oi a windowsash in said frame arranged for opening and closing 0 7 sliding movementand engaging said splash board when closed; a movable pressure memberengageable with said sash and hearing against the sash to retain thesame on said splash board when the sash is closed; a movable operatinghandle; means for imparting movement to the pressure member; means forshitting the sash oft said splash' board when the pressure member ismoved away from said sash and permitting return by the pressure memberof the sash to'position on the splash board when the sash is moved toclosed position; means cooperating with the first mentioned means andwith said operating handle for moving said pressure member away fromsaid sash and said the splash board to permit sliding movement or thesash and for locking the operating handle in the position to which it ismoved; and means cooperating, when the sash is moved to closingposition, with said sash and with said operating handle for unlockingthe operating handle,

6. The combination. with a window frame having a splash board. of awindow sash in said frame arranged for opening and closing by slidingmovement and engaging said splash board when closed; a movable pressuremember engageable with said sash and bearing against the sash to retainthe same on said splash board; a movable operating handle; means forimparting movement to the pressure member; means for shifting the sashoil said splash. board when the pressure member is moved away from saidsash and permitt ng return by the pressure member of the sash toposition on the splash board when the sash is moved to closed position;means cooperating with the first mentioned means and with said operatinghan die for moving said pressure member away from said sash and saidsash off the splash board to permit sliding movement of the sash; andfor locking the operating handle in the position to which it is moved;and means cooperating when the sash is moved to closing position, withsaid sash and with said operating handle for unlocking the operatinghandle to permit the same to be returned to its initial position.

7. T he combination, of a window sash arranged tor opening and closingby sliding movement; a movable pressure member engagea-ble with saidsash and bearing against the sash when the sameis closed; lever meansfor moving the pressure member a vay from said sash to permit slidingmovement thereof; movable operating handle; and link means operativelyconnected to said lever means and to said handle, whereby when saidhandle is moved in one direction said pressure member is moved away fromsaid sash and said handle is locked in the position to which it ismoved.

8. The combination, of a window sash arranged for opening and closing bysliding movement; a movable pressure member engageable with said sashand bearing against the sash when the same is closed; lever means formoving the pressure member away from said sash to permit sliding movement thereof; a movable operating handle; link means operativelyconnected to said lever means and to said handle, whereby when saidhandle is moved in one direction said pressure member is movedaway fromsaid sash and said handle is locked in the position to which it ismoved; dependent means carried by and movable with the window sash;

and means provided with a face for engag ing said handle and an endengageable with the dependent means of said sash when the sash is movedto closing' position whereby, when said sash is moved to closingposition, said handle is unlocked and returned to its initial position.I

9. The combination, with a Tindow frame having a splash board of awindow sash in said frame arranged for opening and closing by slidingmovement and engaging said splash board when closed; a spring actuatedpressure member engageable with said sash and bearing against the sashto retain the same on the splash board; a movable operating handle;lever means for moving the pressure member away from said sash to permitsliding movement thereof; hook means appurtenant to said pressure memberand engageable with said sash for shifting the sash off said splashboard when the pressure member is moved away from said sash; and linkmeans cooperating with said lever means and with said handle for movingsaid pressure member awav from said sash and said sash off said plashboard, and for locking the operating handle in the position to which itis moved.

10. The combination; with a window frame having a splash board, of awindow sash in said frame arranged for opening and closing by slidingmovement and engaging said splash board when closed; a spring actuatedpressure member engage'able with said sash and bearing against the sashto retain the same on the splash board; a mo'v able operating handle;lever means for moving the pressure member away from said sash to permitsliding movement thereof; hook means appurtenant to said pressure memberand engageable with said sash for shifting the sashoil said splash boardwhen the pressure member is moved away from said sash and permittingreturn by the spring actuated pressure member of the sash to position onthe splash board when the sash is movedto closed position; linl; meansco operating with said lever means and with said handle for moving saidpressure memmoved to closing position, for unlocln'ng.

the operating handle and to permit the same to be returned to itsinitial position.

'In testimony whereof I have signed this specification.

DR. ALFRED KI'JRT

